Charles herscher



r50 Model.)

G.HERSOHER. DISINPEGT ING APPARATUS. v 1%,555300. A Patented Mar. 3,1896.

UNITED STATES PATENT OFFICE.

CHARLES HERSOHER, OF PARIS, FRANCE.

DISINFE CTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 555,700, dated March 3,1896.

Application filed November 23,1892. Serial No. 452,936. (No model.)Patented in France May 16, 1892, No. 221,651, and in England May 18,1892,110. 9,416.

To all whom it may concern:

Be it known that 1, CHARLES HERSOHER, engineer, (of the firm of Geneste,I-Ierscher & 00.,) a citizen of the Republic of France, residing atParis, in the Republic of France, have invented certain new and usefulImprovements in Apparatus for Disinfecting by Steam, (for which I haveobtained Letters Patent in France, No. 221,651, dated May 16, 1892, andin Great Britain, No. 9,416, dated May 18, 1892,) of which the followingis a specification.

This invention relates to apparatus for disinfecting by means of steam,and has for its object to prevent the two chambers, one of whichcontains the contaminated articles and the other the disinfected ones,from being placed in open communication by the simultaneous opening ofthe inlet and outlet doors of the apparatus.

In the accompanying drawings, Figures 1, 2, and 3 are a side View, aplan, and an end elevation, respectively, of the safety-door deviceapplied to a disinfecting apparatus.

It may happen when a disinfecting apparatus has two doors opening intotwo separate rooms that by the negligence of the persons in charge thesetwo doors may be left open simultaneously. A risk is then incurred of acurrent of air being established through the apparatus and of microbesand other germs arising from the adjacent chamber being carried into thechamber where the disinfected articles are. To prevent such anoccurrence I employ the construction shown in the drawlngs.

The disinfecting-chamber is shown as a horizontal cylinder with doors 0and V hinged to and adapted to close its opposite ends. A shaft X Y,running parallel with and on the side of the apparatus, is supported bytwo brackets T andU, fixed on the cylindrical Wall of the apparatus. Twolevers X I and Y F are keyed at right angles on the shaft X Y in such away that they can only pass before the doors of the apparatus if theseare entirely closed, and, finally, the rotation of the shaft X Y islimited by a rod L L acting as a stop after a quarter-revolution.

It may thus be seen that in order to open the door 0 it is necessary toturn the lever Y F upward. The lever X I is turned thereby in front ofthe door V and prevents it being opened. If it be desired to open thedoor V, the levers X I and Y F must be lowered, which can only be doneif the door 0 is closed. Thus only one door can ever be open at the sametime.

I claim as my invention- A disinfecting apparatus having openings atopposite ends to be closed by doors, in combination with a shaftcarrying levers at right angles to each other, the said levers adaptedto prevent both doors from being opened at the same time, substantiallyas set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CHARLES HERSCHER.

Witnesses:

JOSEPH DELOGE, RoBr. M. HOOP-ER.

